Luke 1 Many echo the sentiment that they would believe if only they could see. They want facts before their faith. Yet Jesus said to Thomas, “Have you believed because you have seen me? Blessed are the people who have not seen and yet have believed.” [Jn 20:29] Thus, with those thoughts in mind, Dr. Luke, as a researcher, begins his account with these words: “So that you may know for certain” that which was spoken by the prophets is true and fulfilled just as God said.” [Luke 1:4] And was true in Revelation, so it is as true today: “Blessed [are those] who believed that what was spoken… by the Lord would be fulfilled.” [Luke 1:45]
God’s words are true and will be fulfilled just as He said it regardless of our belief but so that we may believe with certainty that God, who is trustworthy and faithful, and “every one of God’s promises are “Yes” in him;….[ 2Co 1:20] has chosen to give us an account by those who were eyewitnesses and servants of the word and now recorded for us by Dr. Luke.
And what is it that we are to believe? “Jesus is the Christ, the Son of God, and that by believing you may have life in his name.” [John 20:31] This is the message of the book of Luke.